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Bevolkingsbeleid en reproduktief gedrag
Leeuw, Franciscus Leonardus, (1983)
Completed fertility and its timing : an economic analysis of
Ward, Michael Paul, (1978)
The emergence of countercyclical U.S. fertility
Butz, William P., (1977)
Happiness, growth, and the life cycle
Easterlin, Richard A., (2010)
Cross sections are history
Easterlin, Richard A., (2013)
Happiness, growth, and public policy